/*
 * Copyright (C) 2012 by Zhang Li <RichSelian at gmail.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the project nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#ifndef HEADER_NW_CONNINFO_H
#define HEADER_NW_CONNINFO_H

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <time.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <unistd.h>

typedef struct nw_conninfo_node_t {
    int m_connsock;
    int m_handle_close;
    struct sockaddr_in m_connaddr;
    time_t m_active_time;
    struct nw_conninfo_node_t* m_next;
    struct nw_conninfo_node_t* m_prev;
} nw_conninfo_node_t;

typedef struct nw_conninfo_prioqueue_t {
    size_t m_capacity;
    size_t m_size;
    struct nw_conninfo_node_t* m_freenode;
    struct nw_conninfo_node_t m_queue;
    struct nw_conninfo_node_t m_poolnodes[0];
} nw_conninfo_prioqueue_t;

nw_conninfo_prioqueue_t* nw_conninfo_prioqueue_create(size_t capacity);
nw_conninfo_node_t* nw_conninfo_prioqueue_append(nw_conninfo_prioqueue_t* queue, int connsock, struct sockaddr_in* connaddr);
nw_conninfo_node_t* nw_conninfo_prioqueue_update(nw_conninfo_prioqueue_t* queue, nw_conninfo_node_t* node);

void nw_conninfo_prioqueue_remove_timeout(nw_conninfo_prioqueue_t* queue, int second);
void nw_conninfo_prioqueue_destroy(nw_conninfo_prioqueue_t* queue);

#endif
